Ok. Piggy backing from chuckwow's deal here (https://www.ozbargain.com.au/node/135845), found this even better deal on their website. Not sure if it's real or not, but I've gone through the purchase and got a confirmation.

I'm actually 99.99% sure this deal includes 20 batteries.
Description says it includes the charger, which has 4 x AA batteries. Then it later descripts the pack as also having an additional 2 X 8 AA Packs to the charger pack.